Meconium Ileus

A neonate is born without any complications to a 24-year-old mother who received no prenatal care or screening. At 2 days of life, the male newborn becomes irritable and inconsolable. He is noted to have abdominal distension. On review of his medical chart, his physician realizes that he failed to pass any meconium since being born. An abdominal radiograph reveals no perforation. A follow-up barium enema shows microcolon and terminal ileum with meconium.